Tugtupite
Pink grains of the rare silicate beryl – tugtupite with the ability of so-called tenebrescence (changes color temporarily after exposure […]
Tugtupite
A pink grain (about 8 mm in size) of the rare silicate beryllium – tugtupite with the ability of so-called […]
Aragonite
Kidney-shaped aggregates of yellow aragonite colored by the content of uranium. The specimen is glowing under UV light .
Aragonite
Kidney-shaped aggregates of yellow aragonite colored by uranium content. The specimen glows under UV light .
Aragonite
Yellow aragonite colored by uranium content. The sample is glowing under UV light .
Rutile, hematite, hyalite
Beautiful specimen of golden rutile stems growing from black shiny hematite, which are partially overgrown with hyalite glowing under UV […]
Hyalite
Aesthetic specimen with two intricately grown crests of clear opal. Under shortwave UV radiation, the opal glows intensely green.
Hyalite
Growth of clear opal forming kidney-shaped aggregates. Under shortwave UV radiation, the opal glows intensely green .
Scapolite
Very shiny, intensely purple, striated purple crystal of scapolite measuring 19 x 19 x 16 mm from the new finds […]
Calcite
Typical Příbram habitus of calcite. It is often referred to as “děsivec” for its striking orange color under UV light. […]
Zunyite
Coatings of white uranyl, zinc, and calcium carbonate from the type locality. The mineral glows green under UV light .
Ruby, pargasite
A one and a half centimeter large ruby crystal protruding from the matrix rock composed mainly of Pargasite. The ruby […]